Suntouch 500775 User Guide

Page 1

Owner’s Manual

SunStat® Pro II Programmable Thermostat Model 500775

The SunStat Pro II model 500775 is designed to operate either a 120 VAC or

240 VAC resistance oor heang system. It comes with an easy setup wizard, a typical program ready to go, and a GFCI inside to meet safety needs.

Please follow this manual for installaon and operang instrucons. Leave these instrucons with the homeowner.

Installaon

Cautions to Follow

You are required to thoroughly read all installaon instrucons and product safety informaon before beginning the installaon of this product. FAILURE TO COMPLY WITH PROPER INSTALLATION AND MAINTENANCE INSTRUCTIONS COULD RESULT IN DAMAGE TO THE SYSTEM OR ELECTRIC SHOCK CAUSING PROPERTY DAMAGE, PERSONAL INJURY AND/OR DEATH. Was is not responsible for damages resulng from improper installaon and/or maintenance.

Local building or plumbing codes may require modicaons to the informaon provided. You are required to consult the local building and plumbing codes prior to installaon. If this informaon is not consistent with local building or plumbing codes, the local codes should be followed.

CAUTION: This product requires electrical wiring. It is recommended that

this product is installed by a qualied technician. Local codes may require this product be installed by an electrician. Prior to installaon, consult your local codes for what is acceptable in your area. To the extent this informaon is not consistent with local codes, the local codes should be followed.

ALWAYS: Wire all circuits as Class 1, Electric Light and Power Circuits ALWAYS: Wire all circuits with insulaon rated 600V minimum. ALWAYS: Mount this control only to a grounded metallic box or a nonmetallic

box.

ALWAYS: Use power supply wires suitable for at least 90°C.

WARNING: High voltage – disconnect power supply before servicing.

WARNING: The GFCI (ground-fault circuit interrupter) in this thermostat

control does not protect against shock if both bare conductors are touched at the same me.

WARNING: Do not exceed 15 amps on this thermostat control. Doing so will

cause risk of re hazard and damage.

CAUTION: Make sure the house power supply voltage matches the voltage

rang of the oor heang system. Do not apply 240 VAC to a 120 VAC rated system. Connecng the wrong voltage may cause overheang and damage to the system, the control, oor coverings, etc.

Parts Needed

Contents of package:

Unpack the thermostat control and make sure everything is in good condion. Do not use a damaged control or part. The package comes with these items:

(1) Thermostat (1) Thermostat oor sensor (4) Wire nuts (Marees®) (2) Mounng screws (1) Screwdriver

Tools and supplies needed:

- No. 2 Phillips screwdriver

- Hole saw (if installing in an exisng wall)

- Wire strippers, wire cuers, and other electrical tools

- Electrical wall box (plasc or metal)* *NOTE: A single-gang extra-deep box allows sucient space to connect 1 or 2 heang mats or cables. For 3 heang mats or cables, a 4-inch square extra-deep electrical box with a single-gang “mud ring” is necessary. Alternately, a juncon box may be installed to connect mulple heang mats or cables, then run power supply wire from the juncon box to the control electrical box. See the Installaon Instrucons provided with the oor heang system for more details.

Locang the Control

Find a suitable locaon for the control. It is designed for indoor dry locaon only. It may be placed on an insulated or uninsulated wall, preferably an interior wall to avoid overheang from outside sun heat. Keep it away from all water sources such as sinks, showers, and bathtubs as well as heat sources such ashot-water piping, heat ducng, wall-mount lighng, and direct sunlight. Locate it at a suitable height, normally about 4-1/2’ to 5’ (1.4 m to 1.5 m) from the oor.

Mounng the Electrical Box

When mounng on an exisng wall, cut the opening for the electrical box for the control. To make it easier to pull the wiring, wait to install the electrical box unl aer all wiring is drawn into this opening.

When mounng on an open wall, secure the electrical box for the control to the wall stud.

When mounng on an open wall, conduit from the electrical box to the oor is recommended (check local codes for requirements) for addional protecon. Install one conduit for the oor sensor. Install another conduit for the oor heang system power leads. Refer to the Installaon Instrucons supplied with the oor heang system for addional installaon details.

Wiring

CAUTION: Turn o power at the circuit breaker before doing any

electrical work.

House Wiring

A qualied person should run a dedicated circuit from the main circuit breaker panel to the control locaon. If a dedicated circuit is not possible, it is acceptable to tap into an exisng circuit. However, there must be enough capacity to handle the load (amps) of the oor heang system being installed and any possible appliance, such as a hair dryer or vacuum cleaner. Avoid circuits that have ballasted lighng, motors, exhaust fans, or hot tub pumps due to possible interference.

The circuit breaker should be rated 20 amps for total circuit loads up to 15 amps. A 15 amp circuit breaker may be used for total circuit loads up to 12 amps. A GFCI (ground-fault circuit interrupter) or AFCI (arc-fault circuit interrupter) type circuit breaker may be used if desired, but is not necessary.

WARNING: Do not exceed 15 amps on this thermostat control. Doing so will

cause risk of re hazard and damage.

Pull power supply wiring to the control locaon. Leave about 6 to 8 inches (15 to 20 cm) of wire for connecons later. This wiring should be size 12 or 14 AWG following appropriate local code requirements.

Floor Sensor

Pull the oor sensor wire up the wall (or conduit) to the control locaon, leaving about 6 inches (15 cm) of wire for connecon later. The sensor wire may be cut shorter if desired, but do not cut it shorter unl the sensor is fully installed (see below).

Note: If the sensor wire is not long enough to reach the control locaon, it may be extended an addional 15 feet (4.5 m) using minimum 20 AWG 2-conductor unshielded wire, or an addional 50 feet (15 m) using shielded wire. When using shielded wire, the “shield” must be connected to the lower sensor terminal, nearest to Bus A. A juncon box may be required by local code for the connecon to this extension wire.

Aer the oor heang system is completely installed according to its instrucons, secure the thick sensor p to the oor. It must be located halfway between heang wires and at least 1 foot into the heang area. Use hot-glue to secure the sensor p and wire in place. Do not cross over a heang wire. Avoid placing it in an area where heang wires are spaced further apart than the rest of the oor, like a large gap between mats or cables. Avoid placing it in an area where a heat duct or recessed light will cause improper measurements. Try to avoid locang it where future items such as a clothes hamper or similar could trap heat and cause improper measurement.

Finish securing the sensor wire along the oor and up the wall. At the control locaon, cut the sensor wire shorter if needed, leaving at least 6 to 8 inches (15 to 20 cm) of wire for connecons later. Re-strip the sensor wire ends 1/8” to 3/16” (3 mm to 4.5 mm) long. If the ends are stripped longer than this they may short-circuit resulng in an Err2 code.

Mat or Cable Power Leads

Pull the power lead wires from the oor heang system into the control locaon. Leave about 6 to 8 inches (15 to 20 cm) of wire for connecons.

Page 2

Wire Connecons

Power Module

Front Module

Load 1

Line 1

Floor Sensor Connecon

Screw Cover

Line 2

Load 2

Cover Screw

Match and connect the two wires marked “LINE1(L)” and “LINE2(N)” to the house power supply wires using the wire nuts provided. Gently tug on the wires to make sure they are secure, otherwise a wire could come loose and cause failure. For added security, overwrap the connecons with electrical tape.

Match and connect the two wires marked “LOAD1” and “LOAD2” to the power lead wires from the oor heang system. Secure these wire connecons the same way with the appropriate size wire nut for the number of wire connected.

CAUTION: Make sure the house power supply voltage matches the voltage

Connect the house ground wire to the ground wire(s) from the oor heang system. If the electrical box is metal, a short length of wire must be secured to the electrical box from this ground connecon.

Insert the ends of the oor sensor wire into the terminals marked “SENSOR” and snug the screws. It does not maer which wire goes into which terminal

SunStat Relay (oponal)

Read and follow the instrucons provided with the SunStat Relay.

Pull 18 AWG to 24 AWG 2-conductor shielded wire through the wall from the SunStat Relay locaon to this control locaon. This wire may be up 100 feet (30 m) in length. Strip the wire ends 1/8” to 3/16” (3 mm to 4.5 mm) long. If the ends are stripped longer than this they may short-circuit.

Connect the wire ends into the “BUS” A and B terminals. Make sure the wire in “A” terminal is connected to an “A” terminal in the SunStat Relay.

Mounng the Control

Carefully press the wires back into the electrical box. Do not use the control to push them in, as this may cause connecons to loosen and possible failure.

Loosen the screw and remove the front module from the power module. Secure the power module into the electrical box with the mounng screws provided.

Snap the front module onto the power module and ghten the screw. Press the Screw Cover in place to cover screw.

Operaon

Overview of Features and Display

Press a buon if the display is dark. This wakes the display backlight.

Day

Time

On/O and GFCI

On/O and Reset

Pressing will turn the thermostat on or o. This also Resets the thermostat to clear an error or GFCI fault. See “GFCI Tesng” and “Troubleshoong”.

on/o

GFCI Tesng

The GFCI (Ground Fault Circuit Interrupter) in this control must be tested when installaon is nished and once each month.

• Make sure the control shows it is Heang. This may require temporarily increasing the setpoint temperature.

• Press the buon. GFCI TRIP should be indicated on the control. There will also be a click sound, indicang power has been removed from the oor heang system. If either of these indicaons fail, turn o the thermostat and replace it. Do not connue to use.

• To reset the GFCI TRIP, press

GFCI

Tes t

on/o

o and back on.

Startup Wizard

This thermostat comes with a “wizard” to help the user through basic setup.

• When rst powered up, or upon reseng the factory defaults, the display will ask to set the year. Adjust the year by pressing

• Select the month and press

• Select the day and press

• Set the hour and minutes (format is 12-hour clock but this can be changed to a 24-hour clock). See Changing Sengs Secon.

• Select the sensing method (Floor or Air). Default is Floor. See cauons before using the Air Sensing method. See Changing Sengs Secon.

• Select a program schedule. The default is called “Normal Day” where it makes the oor warmer during morning and evening hours. Any of the schedules can be customized to t your needs.

• Press

and the thermostat will begin working automacally.

NORMAL DAY

Cycle WAKE LEAVE RETURN SLEEP

Monday – Friday

Saturday

Sunday

NOTE: Air Sensing mode default temperatures are 70F and 62F.

6:00 AM

(6:00)

82 F (27.8 C) 74 F (23.3 C) 82 F (27.8 C) 74 F (23.3 C)

7:00 AM

(7:00)

82 F (27.8 C) 74 F (23.3 C) 82 F (27.8 C) 74 F (23.3 C)

7:00 AM

(7:00)

82 F (27.8 C) 74 F (23.3 C) 82 F (27.8 C) 74 F (23.3 C)

8:00 AM

(8:00)

9:00 AM

(9:00)

9:00 AM

(9:00)

5:00 PM

(17:00)

5:00 PM

(17:00)

5:00 PM

(17:00)

WARM ALL NIGHT

Cycle WAKE LEAVE RETURN SLEEP Monday –

Friday

Saturday

Sunday

NOTE: Air Sensing mode default temperatures are 70F and 62F.

-- 8:00 AM (8:00) 5:00 PM (17:00) --

-- 74 F (23.3 C) 82 F (27.8 C) --

-- 9:00 AM (9:00) 5:00 PM (17:00) --

-- 74 F (23.3 C) 82 F (27.8 C) --

-- 9:00 AM (9:00) 5:00 PM (17:00) --

-- 74 F (23.3 C) 82 F (27.8 C) --

HOME DURING DAY

Cycle WAKE LEAVE RETURN SLEEP Monday –

Friday

Saturday

Sunday

NOTE: Air Sensing mode default temperatures are 70F and 62F.

6:00 AM (6:00) -- -- 10:00 PM (22:00)

82 F (27.8 C) -- -- 74 F (23.3 C)

7:00 AM (7:00) -- -- 11:00 PM (23:00)

82 F (27.8 C) -- -- 74 F (23.3 C)

7:00 AM (7:00) -- -- 11:00 PM (23:00)

82 F (27.8 C) -- -- 74 F (23.3 C)

or and press

10:00 PM

(22:00)

11:00 PM

(23:00)

11:00 PM

(23:00)

OK.

Floor temperature

Setpoint temperature

Page 3

Adjusng the Temperature

Normally the thermostat will run automacally based on the programmed sengs. However, these sengs may be overridden temporarily or for a specied period of me.

Overriding Temporarily

To only override the program unl the next scheduled me, press or to select the desired setpoint temperature. Aer a few seconds it will indicate “HOLD SET TEMP UNTIL NEXT PERIOD” and override and return to normal scheduled sengs press

Holding the Override

To override the program for a specic period of me, press whether to set this for a Connuous Hold or for a certain number of days by

pressing then pressing

the Hold seng. The thermostat will operate at the setpoint temperature connuously or for the number of days selected before returning to normal schedule sengs. This feature may be cancelled by pressing

or . The number of days can be adjusted by selecng EDIT and

or . Press OK to save this selecon. The display will show

CANCEL

will show. To cancel this

CANCEL

HOLD

CANCEL

. Select

Customizing the Program Schedule

Press

PROGRAM

the top of the display. This is a 7-day programmable thermostat, allowing each day to have its own schedule. Press or to browse through each day(s) schedule.

How does a schedule work?

Example:

• To have the oor warm up to 82F at 6:00 AM in the morning, set the WAKE period to these values.

• To save energy and allow the oor to cool to 74F aer leaving at 8:00 AM, set the LEAVE period to these values.

• To have the oor warm again to 82F when returning home at 5:00 PM, set the RETURN period to these values.

• Finally, to save energy overnight and cool the oor to 74F aer 10:00 PM, set the SLEEP period accordingly.

NOTE: With the SmartStart feature turned on (see SmartStart below), the thermostat will learn how long it takes the oor to reach 82F and begin warming up a lile early, reaching 82F by the WAKE me 6:00 AM and again at the RETURN me 5:00 PM.

Modifying the schedule

To modify the schedule, select the period desired and press Press or to adjust the me.

Press Press or to adjust the temperature.

Press

Select another schedule to be edited, or press NOTE: To clear a period, useful if you want to only raise and lower the oor temperature once in a day, select period in the schedule. There must be two periods in the schedule.

. The schedule shown is set for the highlighted day shown at

to save.

CLEAR

to return to the home screen.

. The thermostat will skip over this

EDIT

reaching the setpoint temperature at the scheduled me. For example, the schedule may have a “WAKE” start me of 6:00AM to be 82F (27.8C) and SmartStart may begin pre-heang at 5:30AM to reach 82F by 6:00AM.

If this feature is not desired, it may be turned o. Press select “SMARTSTART” and press and return to the home screen.

. Select “ON” or “OFF” and press

SETUP

. Press to

to save

Other Features

Usage

The thermostat stores in memory the number of hours that it is heang. This informaon may be useful in calculang the energy used by the oor heang system.

SETUP

Press

number of hours it was heang today. Pressing will show the number of hours it was heang the last 7 days and 30 days. To reset these counters to zero,

press

. Press to select “USAGE” and press

CLEAR

. Press

to return to the home screen.

Lockout

The thermostat has the ability to lock out adjustments. This may be useful in public locaons.

To use this feature, press “LOCK” will show in the display. To cancel, press and at the same me and hold for 2 seconds.

and at the same me and hold for 2 seconds.

Calibraon

Under special circumstances it may be desired to slightly adjust the temperature that is displayed for the sensor. Normally this is not recommended. However, it can be done by pressing the current sensor temperature and the oset value. Adjust by pressing or

. Press

to save and return to the home screen.

SETUP

for 2 seconds. The display will show “CAL” and

Reset Factory Defaults

To reset all programming and sengs to the factory defaults, press

to select “FACTORY RESET” and press

Press

pressing

again, or select

BACK

to cancel.

. The display shows the

SETUP

. It will ask you conrm this by

Changing Sengs

Date/Time

SETUP

Press press press OK to save and return to the home screen.

Clock and Temperature Format

Press

me and temperature formats. Select either °F / 12-hour clock or °C / 24-hour clock. Press OK to save and return to the home screen.

Floor Limit

The thermostat can be adjusted for the minimum and maximum allowable setpoint temperatures of the oor sensor. This is useful when the oor covering cannot exceed a certain temperature (84F is common for many wood or laminate products. Consult your oor covering manufacturer for recommended limits.). It is also useful to limit adjustment by users. And it is useful if the thermostat is being operated in Air Sensing mode (see Sensor Regulaon below) but it is sll desired to maintain a minimum oor temperature regardless of the air temperature.

Press

Maximum and Minimum allowed oor temperature setpoints. Press OK to save and return to the home screen.

Sensor Regulaon

The thermostat is designed to operate best in Floor Sensing mode. It is also possible to operate in Air Sensing mode with Floor Sensing limitaon. However, make sure to set a proper maximum Floor Limit temperature (see Floor Limit above) to avoid overheang certain oor coverings. Also note that internal heang in the thermostat may aect the air sensor temperature reading.

Press sensor mode and press

SmartStart

The thermostat is factory set with the “SmartStart” feature turned on. This allows it to learn and automacally determine the best me to begin heang,

. Press to select “CLOCK” and press OK. Adjust the hour and

. Adjust the minutes and press OK. Adjust the year, month, and day and

SETUP

. Select “°F/°C” by pressing

SETUP

. Press to select “FLOOR LIMIT” and press OK. Adjust the

SETUP

. Press to select “AIR/FLOOR” and press

to save and return to the home screen.

. The display will show the current

. Select the desired

Page 4

Troubleshoong

Problem Soluon

1. Check wiring connecons.

Thermostat works but no heat from the system.

No display

GFCI is tripped

Heang occurs at the wrong mes

Err1:Wrong oor sensor

Err2:Floor sensor shorted

Err3:Floor sensor missing

Err4/Err5:Internal sensor fail

Err6:Internal temp limit

Err7:End-of-life

2. If GFCI is tripped, reset thermostat with on/o switch.

3. Check resistances on oor heang system. See manual for system.

1. Check wiring connecons.

2. Check circuit breaker or other protecon “upstream” of thermostat.

1. Check wiring connecons.

2. Reset thermostat by switching on/o.

3. Check resistances on oor heang system. See manual for system.

1. Check that the current me and schedule mes are properly set to AM or PM.

2. On uninsulated concrete SmartStart may start heang very early. You may turn this feature o if not desired.

Floor sensor not correct type or out of range. Check oor sensor resistance.

Floor sensor short-circuited. Turn o power at breaker. Make sure wires are not crossed at the terminals. Or replace sensor. Or Reset Factory Defaults.

Floor sensor not aached and thermostat is in oor sense mode. Turn o power at breaker and aach sensor. Or Reset Factory Defaults.

Internal air sensor is faulty. Replace thermostat or operate in oor sense mode.

Internal temperature overlimit. Make

sure sunlight is not directed at the thermostat or other heat sources in

proximity. Make sure load does not exceed 15 amps. Otherwise, turn o power at breaker and contact factory.

“End-of-life” indicaon. GFCI will no longer funcon correctly or safely. Reset the circuit breaker or replace thermostat.

Limited Warranty

Was Radiant warrants this control (the product) to be free from defect in material and workmanship for a period of (3) years from the date of original purchase from authorized dealers. During this period, Was Radiant will replace the product or refund the original cost of the product at Was Radiant’s opon, without charge, if the product is proven defecve in normal use. Please return the control to your distributor to begin the warranty process.

This limited warranty does not cover shipping costs. Nor does it cover a product subjected to misuse or accidental damage. This warranty does not cover the cost of installaon, diagnosis, removal or reinstallaon, or any material costs or loss of use.

This limited warranty is in lieu of all other warranes, obligaons, or liabilies expressed or implied by the company. In no event shall Was Radiant be liable for consequenal or incidental damages resulng from installaon of this product. Some states or provinces do not allow limitaons on how long an implied warranty lasts, or the exclusion or limitaon of incidental or consequenal damages, so the above exclusions or limitaons may not apply to you. This warranty gives you specic legal rights and you may also have other rights that vary from state to state.

Specicaons

Power Supply 120/240 VAC, 50/60 Hz Maximum Load 15 amps, resisve Maximum Power 1800 was at 120 VAC 3600 was at 240 VAC GFCI Class A (5 milliamp trip nominal) Display Range 32°F to 99°F (0°C to 37°C) Seng Range 40°F to 99°F (4°C to 37°C) Accuracy ± 0.9°F (0.5°C) Environment Indoor dry locaon only Storage Temperature 0°F to 120°F (-17°C to 49°C) Floor Sensor Thermistor, 10k NTC type, double-insulated Memory Programming retained indenitely

Current me/day will need reset if power is lost more than 30 minutes.

ETL Lisng Control No. 3037530

Conforms to UL 873, UL 943, CSA C22.2 No. 24, CSA/CAN C22.2 No. 144

A Watts Water Technologies Company

4500 E. Progress Place Springfield, MO 65803 (417) 864-6108 (417) 864-8161 FAX (800) 276-2419

wattsradiant.com

IOM-WR-SS-PRO2 1142